Fluidtight watch



United States arent G M FLUIDTIGHT WATCH Bernard Taubert, 10-12 Rue des Pecheries, Geneva, Switzerland Filed Feb. 6, 1959, Ser. No. 791,582

Claims priority, application Switzerland Apr. 16, 1958 2 Claims. (Cl. 5S-90) My invention has for its object a fluid-tight watch, the glass of which is clamped between an inner ring and the inner wall of an edge of the case band.

According to my invention, the winding stem of said watch includes two sections, one of which is housed inside the case and the other inside the movement of the watch, said two sections being interconnected in a manner such that it is impossible to separate said sections axially while it is possible to separate them in a direction perpendicular to said axis; the movement is furthermore secured inside the case through the agency of a peripheral projection carried by said movement, which projection rests on an inner projection rigid with the case band and extending above the winding stem, said two projections being clamped against each other through the agency of said above-mentioned ring bearing on the upper part of the movement.

I have illustrated by way of example in the accompanying drawings a preferred embodiment of my invention. In said drawings:

Fig. 1 is a plan view and Fig. 2 an axial cross-section on a larger scale through line II-II of Fig. 1.

Figs. 3 to 7 show detail modications of the connection between the sections of the winding stem.

The watch illustrated in Figs. 1 and 2 includes a solid member 1 forming the bottom, the case band and the rim. Against the inner edge of the latter is clamped through the agency of the ring 2 the flange 3a of the glass 3.

Inside the case is arranged the movement 4 including the automatic winding weight 4a and the dial 4b. The winding stem 5 includes two sections 5a and 5b housed inside the case band and inside the movement respectively. These two sections are interconnected through the two tenons 6 carried respectively by the end of each section and engaging a transverse groove 7 formed just behind the end of the other section. The arrangement of the tenons and grooves in opposite directions is such that the two sections cannot be separated axially and may be separated however in a diametrical direction registering with that of the tenons. The movement 4 includes an annular peripheral projection 8 resting on an inner annular projection 9 on the case band just above the location of the winding stem. The two projections are clamped against each other by the ring 2 engaging the outer periphery of the dial 4b forming part of the movement. When fitting the movement inside the case, the former is lowered inside the latter in a manner such that the two sections of the winding stem engage each other, provided their angular position is such that the groove in the section 5b faces upwardly. The pro- 6 Fatented Jan. 24, 1961 ICC jection 8 engages then the projection 9 after which the glass 3 is tted inside the rim of the case with the ring 2 until the latter engages the dial 4b so as to clamp the two projections 8 and 9 over each other. When dismantling the arrangement, it is suicient to remove the glass 3, following which and without any further operation the movement is taken out of the case whereby the two sections of the Winding stem are separated.

Figs. 3 to 7 show modifications of the arrangement interconnecting the two sections of the winding stem. Fig. 3 shows a different shape which may be given to the tenons and mortises of which a rst modification is illustrated in Fig. 2. In Figs. 4 and 5 showing a further modiication in two orthogonal views, the inner section 5b is provided with an extension 10 inside which is secured a vertical tenon 11 engaging a perforation in an extension 12 on the other section.

In Figs. 6 and 7, which are views at right angles to each other of a further modification, the inner section includes two parallel extensions 13 between which is tted a horizontal tenon engaged by a medial extension on the outer section.

What I claim is:

1. In a watertight watch comprising a glass, a case including a case-band and a rim, an inner ring clamping the glass between it and the inner edge of the rim, a movement carried inside the case and a winding stem, including two parts carried respectively by the case-band and by the movement, the provision of an inner annular projection rigid with the case-band and provided with a radial opening surrounding coaxially the cooperating part of the winding stem, an outer annular peripheral projection rigid with the upper part of the movement and resting on the upper surface of the projection on the case-band, and means through which the inner ring urges said projection on the movement over the inner projection on the case-band to hold the movement in position and simultaneously aline the two parts of the winding stem.

2. In a watertight watch comprising a glass, a case including a case-band and a rim, an inner ring clamping the glass between it and the inner edge of the rim, a movement carried inside the case and a winding stem, including two parts carried respectively by the case-band and by the movement, the provision of an inner annular projection rigid with the case-band and provided with a radial opening surrounding coaxially the cooperating part of the winding stem, an outer annular peripheral projection rigid with the upper part of the movement and resting on the upper surface of the projection on the case-band, and a dial tted over the movement, engaging through its outer periphery the projection on the latter and engaged by the lower edgel of the inner ring to urge said projection on the movement over the inner projection on the caseband to hold the movement in position and simultaneously aline the two parts of the winding stem.

References Cited in the tile of this patent UNITED STATES PATENTS 2,609,655 Vermot Sept. 9, 1952 2,872,777 Kessi Feb. 10, 1959 FOREIGN PATENTS 241,709 Switzerland Aug. 16. l946 316,842 Switzerland Dec. 15, 1956 

